syzbot


kernel BUG at fs/reiserfs/prints.c:LINE!
Status: fixed on 2021/03/10 01:48
Reported-by: syzbot+1541a3226994c0781b29@syzkaller.appspotmail.com
Fix commit: d24396c5290b reiserfs: add check for an invalid ih_entry_count
First crash: 441d, last: 362d

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: kernel BUG at fs/reiserfs/prints.c:LINE! (log)
Repro: C syz .config

Fix bisection: fixed by (bisect log) :
commit d24396c5290ba8ab04ba505176874c4e04a2d53c
Author: Rustam Kovhaev <rkovhaev@gmail.com>
Date: Sun Nov 1 14:09:58 2020 +0000

  reiserfs: add check for an invalid ih_entry_count

similar bugs (4):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel BUG at fs/reiserfs/journal.c:LINE! C done 364 3d11h 1346d 0/22 upstream: reported C repro on 2018/03/31 15:55
linux-4.14 kernel BUG at fs/reiserfs/prints.c:LINE! C done 3 358d 438d 1/1 fixed on 2021/01/12 18:45
linux-4.19 kernel BUG at fs/reiserfs/journal.c:LINE! C 65 13d 441d 0/1 upstream: reported C repro on 2020/09/21 00:32
linux-4.19 kernel BUG at fs/reiserfs/prints.c:LINE! C done 5 336d 427d 1/1 fixed on 2021/02/21 17:18

Sample crash report:

Crashes (5):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2020/11/06 22:36 upstream 521b619acdc8 64069d48 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/10/12 03:20 upstream 3dd0130f2430 4a77ae0b .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/12/09 06:36 upstream 7d8761ba27fc 40cc414d .config log report info
ci-upstream-kasan-gce-selinux-root 2020/10/12 00:41 upstream 3dd0130f2430 4a77ae0b .config log report info
ci-upstream-kasan-gce-selinux-root 2020/09/21 11:31 upstream ba4f184e126b 9e1fa68e .config log report info